Urgent!!! Describe the role of the cell’s plasma membrane in cell transport. Include at least 2 specific components of the cell membrane. Then, explain how the movement of water would occur across the membrane using 2 of the following terms: osmosis, diffusion, passive transport, active transport.

What did not occur in the proterozoic eon a)the oxygen levels increase greatly in the atmosphere,b)the emergence of the eukarya , c)muti cella’s eukaryotic organisms began to diversify,d)anaerobic bacteria kept thriving with more oxygen

Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers

Anormal strand of dna is shown below, followed by the same strand of dna after mutations have occurred.